mirror of
https://git.savannah.gnu.org/git/guile.git
synced 2025-04-30 03:40:34 +02:00
b0a702d773
This assumption does not hold on systems that use the LLP64 data model. Partially fixes <https://debbugs.gnu.org/22406>. Reported by Peter TB Brett <peter@peter-b.co.uk>. * libguile/numbers.h (scm_t_inum): Move here from numbers.c, and change to be equivalent to 'long' (formerly 'scm_t_signed_bits'). (SCM_MOST_POSITIVE_FIXNUM, SCM_MOST_NEGATIVE_FIXNUM): Define based on SCM_I_FIXNUM_BIT instead of SCM_T_SIGNED_BITS_MAX. (SCM_I_INUM): Adjust definitions to return a 'scm_t_inum', and avoiding the assumption that SCM_UNPACK returns a 'long'. * libguile/numbers.c (scm_t_inum): Move definition to numbers.h. Verify that 'scm_t_inum' fits within a SCM value. (scm_i_inum2big): Remove preprocessor code that forced a compile error unless sizeof (long) == sizeof (void *). * libguile/vm-i-scheme.c (_CX): For fixnum assembly functions, choose the register size based on SCM_I_FIXNUM_BIT instead of SIZEOF_VOID_P. (ASM_MUL, "ash", "vector-ref", "vector-set", BV_FIXABLE_INT_REF) (BV_INT_REF, BV_FLOAT_REF, BV_FIXABLE_INT_SET, BV_INT_SET) (BV_FLOAT_SET): Use 'scm_t_inum' for fixnums instead of 'scm_t_signed_bits'.
1058 lines
31 KiB
C
1058 lines
31 KiB
C
/* Copyright (C) 2001, 2009-2014, 2016 Free Software Foundation, Inc.
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public License
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* as published by the Free Software Foundation; either version 3 of
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* the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful, but
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* WITHOUT ANY WARRANTY; without even the implied warranty of
|
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
|
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
|
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* License along with this library; if not, write to the Free Software
|
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
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* 02110-1301 USA
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*/
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/* This file is included in vm_engine.c */
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/*
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* Predicates
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*/
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#define ARGS1(a1) SCM a1 = sp[0];
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#define ARGS2(a1,a2) SCM a1 = sp[-1], a2 = sp[0]; sp--; NULLSTACK (1);
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#define ARGS3(a1,a2,a3) SCM a1 = sp[-2], a2 = sp[-1], a3 = sp[0]; sp -= 2; NULLSTACK (2);
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#define RETURN(x) do { *sp = x; NEXT; } while (0)
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VM_DEFINE_FUNCTION (128, not, "not", 1)
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{
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ARGS1 (x);
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RETURN (scm_from_bool (scm_is_false (x)));
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}
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VM_DEFINE_FUNCTION (129, not_not, "not-not", 1)
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{
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ARGS1 (x);
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RETURN (scm_from_bool (!scm_is_false (x)));
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}
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VM_DEFINE_FUNCTION (130, eq, "eq?", 2)
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{
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ARGS2 (x, y);
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RETURN (scm_from_bool (scm_is_eq (x, y)));
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}
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VM_DEFINE_FUNCTION (131, not_eq, "not-eq?", 2)
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{
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ARGS2 (x, y);
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RETURN (scm_from_bool (!scm_is_eq (x, y)));
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}
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VM_DEFINE_FUNCTION (132, nullp, "null?", 1)
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{
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ARGS1 (x);
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RETURN (scm_from_bool (scm_is_null (x)));
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}
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VM_DEFINE_FUNCTION (133, not_nullp, "not-null?", 1)
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{
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ARGS1 (x);
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RETURN (scm_from_bool (!scm_is_null (x)));
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}
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VM_DEFINE_FUNCTION (134, eqv, "eqv?", 2)
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{
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ARGS2 (x, y);
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if (scm_is_eq (x, y))
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RETURN (SCM_BOOL_T);
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if (SCM_IMP (x) || SCM_IMP (y))
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RETURN (SCM_BOOL_F);
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SYNC_REGISTER ();
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RETURN (scm_eqv_p (x, y));
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}
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VM_DEFINE_FUNCTION (135, equal, "equal?", 2)
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{
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ARGS2 (x, y);
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if (scm_is_eq (x, y))
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RETURN (SCM_BOOL_T);
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if (SCM_IMP (x) || SCM_IMP (y))
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RETURN (SCM_BOOL_F);
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SYNC_REGISTER ();
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RETURN (scm_equal_p (x, y));
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}
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VM_DEFINE_FUNCTION (136, pairp, "pair?", 1)
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{
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ARGS1 (x);
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RETURN (scm_from_bool (scm_is_pair (x)));
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}
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VM_DEFINE_FUNCTION (137, listp, "list?", 1)
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{
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ARGS1 (x);
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RETURN (scm_from_bool (scm_ilength (x) >= 0));
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}
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VM_DEFINE_FUNCTION (138, symbolp, "symbol?", 1)
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{
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ARGS1 (x);
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RETURN (scm_from_bool (scm_is_symbol (x)));
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}
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VM_DEFINE_FUNCTION (139, vectorp, "vector?", 1)
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{
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ARGS1 (x);
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RETURN (scm_from_bool (SCM_I_IS_VECTOR (x)));
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}
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/*
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* Basic data
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*/
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VM_DEFINE_FUNCTION (140, cons, "cons", 2)
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{
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ARGS2 (x, y);
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CONS (x, x, y);
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RETURN (x);
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}
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#define VM_VALIDATE_CONS(x, proc) \
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VM_ASSERT (scm_is_pair (x), vm_error_not_a_pair (proc, x))
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VM_DEFINE_FUNCTION (141, car, "car", 1)
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{
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ARGS1 (x);
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VM_VALIDATE_CONS (x, "car");
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RETURN (SCM_CAR (x));
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}
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VM_DEFINE_FUNCTION (142, cdr, "cdr", 1)
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{
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ARGS1 (x);
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VM_VALIDATE_CONS (x, "cdr");
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RETURN (SCM_CDR (x));
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}
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VM_DEFINE_INSTRUCTION (143, set_car, "set-car!", 0, 2, 0)
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{
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SCM x, y;
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POP2 (y, x);
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VM_VALIDATE_CONS (x, "set-car!");
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SCM_SETCAR (x, y);
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NEXT;
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}
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VM_DEFINE_INSTRUCTION (144, set_cdr, "set-cdr!", 0, 2, 0)
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{
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SCM x, y;
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POP2 (y, x);
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VM_VALIDATE_CONS (x, "set-cdr!");
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SCM_SETCDR (x, y);
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NEXT;
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}
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/*
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* Numeric relational tests
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*/
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#undef REL
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#define REL(crel,srel) \
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{ \
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ARGS2 (x, y); \
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if (SCM_I_INUMP (x) && SCM_I_INUMP (y)) \
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RETURN (scm_from_bool (((scm_t_signed_bits) SCM_UNPACK (x)) \
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crel ((scm_t_signed_bits) SCM_UNPACK (y)))); \
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SYNC_REGISTER (); \
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RETURN (srel (x, y)); \
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}
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VM_DEFINE_FUNCTION (145, ee, "ee?", 2)
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{
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REL (==, scm_num_eq_p);
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}
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VM_DEFINE_FUNCTION (146, lt, "lt?", 2)
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{
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REL (<, scm_less_p);
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}
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VM_DEFINE_FUNCTION (147, le, "le?", 2)
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{
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REL (<=, scm_leq_p);
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}
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VM_DEFINE_FUNCTION (148, gt, "gt?", 2)
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{
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REL (>, scm_gr_p);
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}
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VM_DEFINE_FUNCTION (149, ge, "ge?", 2)
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{
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REL (>=, scm_geq_p);
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}
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/*
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* Numeric functions
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*/
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/* The maximum/minimum tagged integers. */
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#undef INUM_MAX
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#undef INUM_MIN
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#undef INUM_STEP
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#define INUM_MAX \
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((scm_t_signed_bits) SCM_UNPACK (SCM_I_MAKINUM (SCM_MOST_POSITIVE_FIXNUM)))
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#define INUM_MIN \
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((scm_t_signed_bits) SCM_UNPACK (SCM_I_MAKINUM (SCM_MOST_NEGATIVE_FIXNUM)))
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#define INUM_STEP \
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((scm_t_signed_bits) SCM_UNPACK (SCM_INUM1) \
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- (scm_t_signed_bits) SCM_UNPACK (SCM_INUM0))
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#undef FUNC2
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#define FUNC2(CFUNC,SFUNC) \
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{ \
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ARGS2 (x, y); \
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if (SCM_I_INUMP (x) && SCM_I_INUMP (y)) \
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{ \
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scm_t_int64 n = SCM_I_INUM (x) CFUNC SCM_I_INUM (y);\
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if (SCM_FIXABLE (n)) \
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RETURN (SCM_I_MAKINUM (n)); \
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} \
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SYNC_REGISTER (); \
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RETURN (SFUNC (x, y)); \
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}
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/* Assembly tagged integer arithmetic routines. This code uses the
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`asm goto' feature introduced in GCC 4.5. */
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#if SCM_GNUC_PREREQ (4, 5) && (defined __x86_64__ || defined __i386__)
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# undef _CX
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# if SCM_I_FIXNUM_BIT == 62
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# define _CX "rcx"
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# elif SCM_I_FIXNUM_BIT == 30
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# define _CX "ecx"
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# else
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# error unsupported word size
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# endif
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/* The macros below check the CPU's overflow flag to improve fixnum
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arithmetic. The _CX register (%rcx or %ecx) is explicitly
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clobbered because `asm goto' can't have outputs, in which case the
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`r' constraint could be used to let the register allocator choose a
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register.
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TODO: Use `cold' label attribute in GCC 4.6.
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http://gcc.gnu.org/ml/gcc-patches/2010-10/msg01777.html */
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# define ASM_ADD(x, y) \
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{ \
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asm volatile goto ("mov %1, %%"_CX"; " \
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"test %[tag], %%cl; je %l[slow_add]; " \
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"test %[tag], %0; je %l[slow_add]; " \
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"sub %[tag], %%"_CX"; " \
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"add %0, %%"_CX"; jo %l[slow_add]; " \
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"mov %%"_CX", (%[vsp])\n" \
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: /* no outputs */ \
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: "r" (x), "r" (y), \
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[vsp] "r" (sp), [tag] "i" (scm_tc2_int) \
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: _CX, "memory", "cc" \
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: slow_add); \
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NEXT; \
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} \
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slow_add: \
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do { } while (0)
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# define ASM_SUB(x, y) \
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{ \
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asm volatile goto ("mov %0, %%"_CX"; " \
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"test %[tag], %%cl; je %l[slow_sub]; " \
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"test %[tag], %1; je %l[slow_sub]; " \
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"sub %1, %%"_CX"; jo %l[slow_sub]; " \
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"add %[tag], %%"_CX"; " \
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"mov %%"_CX", (%[vsp])\n" \
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: /* no outputs */ \
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: "r" (x), "r" (y), \
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[vsp] "r" (sp), [tag] "i" (scm_tc2_int) \
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: _CX, "memory", "cc" \
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: slow_sub); \
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NEXT; \
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} \
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slow_sub: \
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do { } while (0)
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# define ASM_MUL(x, y) \
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{ \
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scm_t_inum xx = SCM_I_INUM (x); \
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asm volatile goto ("mov %1, %%"_CX"; " \
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"test %[tag], %%cl; je %l[slow_mul]; " \
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"sub %[tag], %%"_CX"; " \
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"test %[tag], %0; je %l[slow_mul]; " \
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"imul %2, %%"_CX"; jo %l[slow_mul]; " \
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"add %[tag], %%"_CX"; " \
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"mov %%"_CX", (%[vsp])\n" \
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: /* no outputs */ \
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: "r" (x), "r" (y), "r" (xx), \
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[vsp] "r" (sp), [tag] "i" (scm_tc2_int) \
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: _CX, "memory", "cc" \
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: slow_mul); \
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NEXT; \
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} \
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slow_mul: \
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do { } while (0)
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#endif
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#if SCM_GNUC_PREREQ (4, 5) && defined __arm__
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# define ASM_ADD(x, y) \
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if (SCM_LIKELY (SCM_I_INUMP (x) && SCM_I_INUMP (y))) \
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{ \
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asm volatile goto ("adds r0, %0, %1; bvs %l[slow_add]; " \
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"str r0, [%[vsp]]\n" \
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: /* no outputs */ \
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: "r" (x), "r" (y - scm_tc2_int), \
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[vsp] "r" (sp) \
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: "r0", "memory", "cc" \
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: slow_add); \
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NEXT; \
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} \
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slow_add: \
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do { } while (0)
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# define ASM_SUB(x, y) \
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if (SCM_LIKELY (SCM_I_INUMP (x) && SCM_I_INUMP (y))) \
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{ \
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asm volatile goto ("subs r0, %0, %1; bvs %l[slow_sub]; " \
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"str r0, [%[vsp]]\n" \
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: /* no outputs */ \
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: "r" (x), "r" (y - scm_tc2_int), \
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[vsp] "r" (sp) \
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: "r0", "memory", "cc" \
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: slow_sub); \
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NEXT; \
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} \
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slow_sub: \
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do { } while (0)
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# if defined (__ARM_ARCH_3M__) || defined (__ARM_ARCH_4__) \
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|| defined (__ARM_ARCH_4T__) || defined (__ARM_ARCH_5__) \
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|| defined (__ARM_ARCH_5T__) || defined (__ARM_ARCH_5E__) \
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|| defined (__ARM_ARCH_5TE__) || defined (__ARM_ARCH_5TEJ__) \
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|| defined (__ARM_ARCH_6__) || defined (__ARM_ARCH_6J__) \
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|| defined (__ARM_ARCH_6K__) || defined (__ARM_ARCH_6Z__) \
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|| defined (__ARM_ARCH_6ZK__) || defined (__ARM_ARCH_6T2__) \
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|| defined (__ARM_ARCH_6M__) || defined (__ARM_ARCH_7__) \
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|| defined (__ARM_ARCH_7A__) || defined (__ARM_ARCH_7R__) \
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|| defined (__ARM_ARCH_7M__) || defined (__ARM_ARCH_7EM__) \
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|| defined (__ARM_ARCH_8A__)
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||
|
||
/* The ARM architectures listed above support the SMULL instruction */
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# define ASM_MUL(x, y) \
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if (SCM_LIKELY (SCM_I_INUMP (x) && SCM_I_INUMP (y))) \
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{ \
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scm_t_inum rlo, rhi; \
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asm ("smull %0, %1, %2, %3\n" \
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: "=&r" (rlo), "=&r" (rhi) \
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: "r" (SCM_UNPACK (x) - scm_tc2_int), \
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"r" (SCM_I_INUM (y))); \
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if (SCM_LIKELY (SCM_SRS (rlo, 31) == rhi)) \
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RETURN (SCM_PACK (rlo + scm_tc2_int)); \
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||
} \
|
||
do { } while (0)
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|
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# endif
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||
|
||
#endif
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|
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VM_DEFINE_FUNCTION (150, add, "add", 2)
|
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{
|
||
#ifndef ASM_ADD
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FUNC2 (+, scm_sum);
|
||
#else
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ARGS2 (x, y);
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ASM_ADD (x, y);
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SYNC_REGISTER ();
|
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RETURN (scm_sum (x, y));
|
||
#endif
|
||
}
|
||
|
||
VM_DEFINE_FUNCTION (151, add1, "add1", 1)
|
||
{
|
||
ARGS1 (x);
|
||
|
||
/* Check for overflow. We must avoid overflow in the signed
|
||
addition below, even if X is not an inum. */
|
||
if (SCM_LIKELY ((scm_t_signed_bits) SCM_UNPACK (x) <= INUM_MAX - INUM_STEP))
|
||
{
|
||
SCM result;
|
||
|
||
/* Add 1 to the integer without untagging. */
|
||
result = SCM_PACK ((scm_t_signed_bits) SCM_UNPACK (x) + INUM_STEP);
|
||
|
||
if (SCM_LIKELY (SCM_I_INUMP (result)))
|
||
RETURN (result);
|
||
}
|
||
|
||
SYNC_REGISTER ();
|
||
RETURN (scm_sum (x, SCM_I_MAKINUM (1)));
|
||
}
|
||
|
||
VM_DEFINE_FUNCTION (152, sub, "sub", 2)
|
||
{
|
||
#ifndef ASM_SUB
|
||
FUNC2 (-, scm_difference);
|
||
#else
|
||
ARGS2 (x, y);
|
||
ASM_SUB (x, y);
|
||
SYNC_REGISTER ();
|
||
RETURN (scm_difference (x, y));
|
||
#endif
|
||
}
|
||
|
||
VM_DEFINE_FUNCTION (153, sub1, "sub1", 1)
|
||
{
|
||
ARGS1 (x);
|
||
|
||
/* Check for overflow. We must avoid overflow in the signed
|
||
subtraction below, even if X is not an inum. */
|
||
if (SCM_LIKELY ((scm_t_signed_bits) SCM_UNPACK (x) >= INUM_MIN + INUM_STEP))
|
||
{
|
||
SCM result;
|
||
|
||
/* Substract 1 from the integer without untagging. */
|
||
result = SCM_PACK ((scm_t_signed_bits) SCM_UNPACK (x) - INUM_STEP);
|
||
|
||
if (SCM_LIKELY (SCM_I_INUMP (result)))
|
||
RETURN (result);
|
||
}
|
||
|
||
SYNC_REGISTER ();
|
||
RETURN (scm_difference (x, SCM_I_MAKINUM (1)));
|
||
}
|
||
|
||
VM_DEFINE_FUNCTION (154, mul, "mul", 2)
|
||
{
|
||
ARGS2 (x, y);
|
||
#ifdef ASM_MUL
|
||
ASM_MUL (x, y);
|
||
#endif
|
||
SYNC_REGISTER ();
|
||
RETURN (scm_product (x, y));
|
||
}
|
||
|
||
# undef ASM_ADD
|
||
# undef ASM_SUB
|
||
# undef ASM_MUL
|
||
|
||
VM_DEFINE_FUNCTION (155, div, "div", 2)
|
||
{
|
||
ARGS2 (x, y);
|
||
SYNC_REGISTER ();
|
||
RETURN (scm_divide (x, y));
|
||
}
|
||
|
||
VM_DEFINE_FUNCTION (156, quo, "quo", 2)
|
||
{
|
||
ARGS2 (x, y);
|
||
SYNC_REGISTER ();
|
||
RETURN (scm_quotient (x, y));
|
||
}
|
||
|
||
VM_DEFINE_FUNCTION (157, rem, "rem", 2)
|
||
{
|
||
ARGS2 (x, y);
|
||
SYNC_REGISTER ();
|
||
RETURN (scm_remainder (x, y));
|
||
}
|
||
|
||
VM_DEFINE_FUNCTION (158, mod, "mod", 2)
|
||
{
|
||
ARGS2 (x, y);
|
||
SYNC_REGISTER ();
|
||
RETURN (scm_modulo (x, y));
|
||
}
|
||
|
||
VM_DEFINE_FUNCTION (159, ash, "ash", 2)
|
||
{
|
||
ARGS2 (x, y);
|
||
if (SCM_I_INUMP (x) && SCM_I_INUMP (y))
|
||
{
|
||
if (SCM_I_INUM (y) < 0)
|
||
/* Right shift, will be a fixnum. */
|
||
RETURN (SCM_I_MAKINUM
|
||
(SCM_SRS (SCM_I_INUM (x),
|
||
(-SCM_I_INUM (y) <= SCM_I_FIXNUM_BIT-1)
|
||
? -SCM_I_INUM (y) : SCM_I_FIXNUM_BIT-1)));
|
||
else
|
||
/* Left shift. See comments in scm_ash. */
|
||
{
|
||
scm_t_inum nn, bits_to_shift;
|
||
|
||
nn = SCM_I_INUM (x);
|
||
bits_to_shift = SCM_I_INUM (y);
|
||
|
||
if (bits_to_shift < SCM_I_FIXNUM_BIT-1
|
||
&& ((scm_t_bits)
|
||
(SCM_SRS (nn, (SCM_I_FIXNUM_BIT-1 - bits_to_shift)) + 1)
|
||
<= 1))
|
||
RETURN (SCM_I_MAKINUM (nn < 0
|
||
? -(-nn << bits_to_shift)
|
||
: (nn << bits_to_shift)));
|
||
/* fall through */
|
||
}
|
||
/* fall through */
|
||
}
|
||
SYNC_REGISTER ();
|
||
RETURN (scm_ash (x, y));
|
||
}
|
||
|
||
VM_DEFINE_FUNCTION (160, logand, "logand", 2)
|
||
{
|
||
ARGS2 (x, y);
|
||
if (SCM_I_INUMP (x) && SCM_I_INUMP (y))
|
||
/* Compute bitwise AND without untagging */
|
||
RETURN (SCM_PACK (SCM_UNPACK (x) & SCM_UNPACK (y)));
|
||
SYNC_REGISTER ();
|
||
RETURN (scm_logand (x, y));
|
||
}
|
||
|
||
VM_DEFINE_FUNCTION (161, logior, "logior", 2)
|
||
{
|
||
ARGS2 (x, y);
|
||
if (SCM_I_INUMP (x) && SCM_I_INUMP (y))
|
||
/* Compute bitwise OR without untagging */
|
||
RETURN (SCM_PACK (SCM_UNPACK (x) | SCM_UNPACK (y)));
|
||
SYNC_REGISTER ();
|
||
RETURN (scm_logior (x, y));
|
||
}
|
||
|
||
VM_DEFINE_FUNCTION (162, logxor, "logxor", 2)
|
||
{
|
||
ARGS2 (x, y);
|
||
if (SCM_I_INUMP (x) && SCM_I_INUMP (y))
|
||
RETURN (SCM_I_MAKINUM (SCM_I_INUM (x) ^ SCM_I_INUM (y)));
|
||
SYNC_REGISTER ();
|
||
RETURN (scm_logxor (x, y));
|
||
}
|
||
|
||
|
||
/*
|
||
* Vectors and arrays
|
||
*/
|
||
|
||
VM_DEFINE_FUNCTION (163, vector_ref, "vector-ref", 2)
|
||
{
|
||
scm_t_inum i = 0;
|
||
ARGS2 (vect, idx);
|
||
if (SCM_LIKELY (SCM_I_IS_NONWEAK_VECTOR (vect)
|
||
&& SCM_I_INUMP (idx)
|
||
&& ((i = SCM_I_INUM (idx)) >= 0)
|
||
&& i < SCM_I_VECTOR_LENGTH (vect)))
|
||
RETURN (SCM_I_VECTOR_ELTS (vect)[i]);
|
||
else
|
||
{
|
||
SYNC_REGISTER ();
|
||
RETURN (scm_vector_ref (vect, idx));
|
||
}
|
||
}
|
||
|
||
VM_DEFINE_INSTRUCTION (164, vector_set, "vector-set", 0, 3, 0)
|
||
{
|
||
scm_t_inum i = 0;
|
||
SCM vect, idx, val;
|
||
POP3 (val, idx, vect);
|
||
if (SCM_LIKELY (SCM_I_IS_NONWEAK_VECTOR (vect)
|
||
&& SCM_I_INUMP (idx)
|
||
&& ((i = SCM_I_INUM (idx)) >= 0)
|
||
&& i < SCM_I_VECTOR_LENGTH (vect)))
|
||
SCM_I_VECTOR_WELTS (vect)[i] = val;
|
||
else
|
||
{
|
||
SYNC_REGISTER ();
|
||
scm_vector_set_x (vect, idx, val);
|
||
}
|
||
NEXT;
|
||
}
|
||
|
||
VM_DEFINE_INSTRUCTION (165, make_array, "make-array", 3, -1, 1)
|
||
{
|
||
scm_t_uint32 len;
|
||
SCM shape, ret;
|
||
|
||
len = FETCH ();
|
||
len = (len << 8) + FETCH ();
|
||
len = (len << 8) + FETCH ();
|
||
POP (shape);
|
||
SYNC_REGISTER ();
|
||
PRE_CHECK_UNDERFLOW (len);
|
||
ret = scm_from_contiguous_array (shape, sp - len + 1, len);
|
||
DROPN (len);
|
||
PUSH (ret);
|
||
NEXT;
|
||
}
|
||
|
||
|
||
/*
|
||
* Structs
|
||
*/
|
||
#define VM_VALIDATE_STRUCT(obj, proc) \
|
||
VM_ASSERT (SCM_STRUCTP (obj), vm_error_not_a_struct (proc, obj))
|
||
|
||
VM_DEFINE_FUNCTION (166, struct_p, "struct?", 1)
|
||
{
|
||
ARGS1 (obj);
|
||
RETURN (scm_from_bool (SCM_STRUCTP (obj)));
|
||
}
|
||
|
||
VM_DEFINE_FUNCTION (167, struct_vtable, "struct-vtable", 1)
|
||
{
|
||
ARGS1 (obj);
|
||
VM_VALIDATE_STRUCT (obj, "struct_vtable");
|
||
RETURN (SCM_STRUCT_VTABLE (obj));
|
||
}
|
||
|
||
VM_DEFINE_INSTRUCTION (168, make_struct, "make-struct", 2, -1, 1)
|
||
{
|
||
unsigned h = FETCH ();
|
||
unsigned l = FETCH ();
|
||
scm_t_bits n = ((h << 8U) + l);
|
||
SCM vtable = sp[-(n - 1)];
|
||
const SCM *inits = sp - n + 2;
|
||
SCM ret;
|
||
|
||
SYNC_REGISTER ();
|
||
|
||
if (SCM_LIKELY (SCM_STRUCTP (vtable)
|
||
&& SCM_VTABLE_FLAG_IS_SET (vtable, SCM_VTABLE_FLAG_SIMPLE)
|
||
&& (SCM_STRUCT_DATA_REF (vtable, scm_vtable_index_size) + 1
|
||
== n)
|
||
&& !SCM_VTABLE_INSTANCE_FINALIZER (vtable)))
|
||
{
|
||
/* Verily, we are making a simple struct with the right number of
|
||
initializers, and no finalizer. */
|
||
ret = scm_words ((scm_t_bits)SCM_STRUCT_DATA (vtable) | scm_tc3_struct,
|
||
n + 1);
|
||
SCM_SET_CELL_WORD_1 (ret, (scm_t_bits)SCM_CELL_OBJECT_LOC (ret, 2));
|
||
memcpy (SCM_STRUCT_DATA (ret), inits, (n - 1) * sizeof (SCM));
|
||
}
|
||
else
|
||
ret = scm_c_make_structv (vtable, 0, n - 1, (scm_t_bits *) inits);
|
||
|
||
DROPN (n);
|
||
PUSH (ret);
|
||
|
||
NEXT;
|
||
}
|
||
|
||
VM_DEFINE_FUNCTION (169, struct_ref, "struct-ref", 2)
|
||
{
|
||
ARGS2 (obj, pos);
|
||
|
||
if (SCM_LIKELY (SCM_STRUCTP (obj)
|
||
&& SCM_STRUCT_VTABLE_FLAG_IS_SET (obj,
|
||
SCM_VTABLE_FLAG_SIMPLE)
|
||
&& SCM_I_INUMP (pos)))
|
||
{
|
||
SCM vtable;
|
||
scm_t_bits index, len;
|
||
|
||
/* True, an inum is a signed value, but cast to unsigned it will
|
||
certainly be more than the length, so we will fall through if
|
||
index is negative. */
|
||
index = SCM_I_INUM (pos);
|
||
vtable = SCM_STRUCT_VTABLE (obj);
|
||
len = SCM_STRUCT_DATA_REF (vtable, scm_vtable_index_size);
|
||
|
||
if (SCM_LIKELY (index < len))
|
||
{
|
||
scm_t_bits *data = SCM_STRUCT_DATA (obj);
|
||
RETURN (SCM_PACK (data[index]));
|
||
}
|
||
}
|
||
|
||
SYNC_REGISTER ();
|
||
RETURN (scm_struct_ref (obj, pos));
|
||
}
|
||
|
||
VM_DEFINE_FUNCTION (170, struct_set, "struct-set", 3)
|
||
{
|
||
ARGS3 (obj, pos, val);
|
||
|
||
if (SCM_LIKELY (SCM_STRUCTP (obj)
|
||
&& SCM_STRUCT_VTABLE_FLAG_IS_SET (obj,
|
||
SCM_VTABLE_FLAG_SIMPLE)
|
||
&& SCM_STRUCT_VTABLE_FLAG_IS_SET (obj,
|
||
SCM_VTABLE_FLAG_SIMPLE_RW)
|
||
&& SCM_I_INUMP (pos)))
|
||
{
|
||
SCM vtable;
|
||
scm_t_bits index, len;
|
||
|
||
/* See above regarding index being >= 0. */
|
||
index = SCM_I_INUM (pos);
|
||
vtable = SCM_STRUCT_VTABLE (obj);
|
||
len = SCM_STRUCT_DATA_REF (vtable, scm_vtable_index_size);
|
||
if (SCM_LIKELY (index < len))
|
||
{
|
||
scm_t_bits *data = SCM_STRUCT_DATA (obj);
|
||
data[index] = SCM_UNPACK (val);
|
||
RETURN (val);
|
||
}
|
||
}
|
||
|
||
SYNC_REGISTER ();
|
||
RETURN (scm_struct_set_x (obj, pos, val));
|
||
}
|
||
|
||
|
||
/*
|
||
* GOOPS support
|
||
*/
|
||
VM_DEFINE_FUNCTION (171, class_of, "class-of", 1)
|
||
{
|
||
ARGS1 (obj);
|
||
if (SCM_INSTANCEP (obj))
|
||
RETURN (SCM_CLASS_OF (obj));
|
||
SYNC_REGISTER ();
|
||
RETURN (scm_class_of (obj));
|
||
}
|
||
|
||
/* FIXME: No checking whatsoever. */
|
||
VM_DEFINE_FUNCTION (172, slot_ref, "slot-ref", 2)
|
||
{
|
||
size_t slot;
|
||
ARGS2 (instance, idx);
|
||
slot = SCM_I_INUM (idx);
|
||
RETURN (SCM_PACK (SCM_STRUCT_DATA (instance) [slot]));
|
||
}
|
||
|
||
/* FIXME: No checking whatsoever. */
|
||
VM_DEFINE_INSTRUCTION (173, slot_set, "slot-set", 0, 3, 0)
|
||
{
|
||
SCM instance, idx, val;
|
||
size_t slot;
|
||
POP3 (val, idx, instance);
|
||
slot = SCM_I_INUM (idx);
|
||
SCM_STRUCT_DATA (instance) [slot] = SCM_UNPACK (val);
|
||
NEXT;
|
||
}
|
||
|
||
|
||
/*
|
||
* Bytevectors
|
||
*/
|
||
#define VM_VALIDATE_BYTEVECTOR(x, proc) \
|
||
VM_ASSERT (SCM_BYTEVECTOR_P (x), vm_error_not_a_bytevector (proc, x))
|
||
|
||
#define BV_REF_WITH_ENDIANNESS(stem, fn_stem) \
|
||
{ \
|
||
SCM endianness; \
|
||
POP (endianness); \
|
||
if (scm_is_eq (endianness, scm_i_native_endianness)) \
|
||
goto VM_LABEL (bv_##stem##_native_ref); \
|
||
{ \
|
||
ARGS2 (bv, idx); \
|
||
SYNC_REGISTER (); \
|
||
RETURN (scm_bytevector_##fn_stem##_ref (bv, idx, endianness)); \
|
||
} \
|
||
}
|
||
|
||
/* Return true (non-zero) if PTR has suitable alignment for TYPE. */
|
||
#define ALIGNED_P(ptr, type) \
|
||
((scm_t_uintptr) (ptr) % alignof_type (type) == 0)
|
||
|
||
VM_DEFINE_FUNCTION (174, bv_u16_ref, "bv-u16-ref", 3)
|
||
BV_REF_WITH_ENDIANNESS (u16, u16)
|
||
VM_DEFINE_FUNCTION (175, bv_s16_ref, "bv-s16-ref", 3)
|
||
BV_REF_WITH_ENDIANNESS (s16, s16)
|
||
VM_DEFINE_FUNCTION (176, bv_u32_ref, "bv-u32-ref", 3)
|
||
BV_REF_WITH_ENDIANNESS (u32, u32)
|
||
VM_DEFINE_FUNCTION (177, bv_s32_ref, "bv-s32-ref", 3)
|
||
BV_REF_WITH_ENDIANNESS (s32, s32)
|
||
VM_DEFINE_FUNCTION (178, bv_u64_ref, "bv-u64-ref", 3)
|
||
BV_REF_WITH_ENDIANNESS (u64, u64)
|
||
VM_DEFINE_FUNCTION (179, bv_s64_ref, "bv-s64-ref", 3)
|
||
BV_REF_WITH_ENDIANNESS (s64, s64)
|
||
VM_DEFINE_FUNCTION (180, bv_f32_ref, "bv-f32-ref", 3)
|
||
BV_REF_WITH_ENDIANNESS (f32, ieee_single)
|
||
VM_DEFINE_FUNCTION (181, bv_f64_ref, "bv-f64-ref", 3)
|
||
BV_REF_WITH_ENDIANNESS (f64, ieee_double)
|
||
|
||
#undef BV_REF_WITH_ENDIANNESS
|
||
|
||
#define BV_FIXABLE_INT_REF(stem, fn_stem, type, size) \
|
||
{ \
|
||
scm_t_inum i; \
|
||
const scm_t_ ## type *int_ptr; \
|
||
ARGS2 (bv, idx); \
|
||
\
|
||
VM_VALIDATE_BYTEVECTOR (bv, "bv-" #stem "-ref"); \
|
||
i = SCM_I_INUM (idx); \
|
||
int_ptr = (scm_t_ ## type *) (SCM_BYTEVECTOR_CONTENTS (bv) + i); \
|
||
\
|
||
if (SCM_LIKELY (SCM_I_INUMP (idx) \
|
||
&& (i >= 0) \
|
||
&& (i + size <= SCM_BYTEVECTOR_LENGTH (bv)) \
|
||
&& (ALIGNED_P (int_ptr, scm_t_ ## type)))) \
|
||
RETURN (SCM_I_MAKINUM (*int_ptr)); \
|
||
else \
|
||
{ \
|
||
SYNC_REGISTER (); \
|
||
RETURN (scm_bytevector_ ## fn_stem ## _ref (bv, idx)); \
|
||
} \
|
||
}
|
||
|
||
#define BV_INT_REF(stem, type, size) \
|
||
{ \
|
||
scm_t_inum i; \
|
||
const scm_t_ ## type *int_ptr; \
|
||
ARGS2 (bv, idx); \
|
||
\
|
||
VM_VALIDATE_BYTEVECTOR (bv, "bv-" #stem "-ref"); \
|
||
i = SCM_I_INUM (idx); \
|
||
int_ptr = (scm_t_ ## type *) (SCM_BYTEVECTOR_CONTENTS (bv) + i); \
|
||
\
|
||
if (SCM_LIKELY (SCM_I_INUMP (idx) \
|
||
&& (i >= 0) \
|
||
&& (i + size <= SCM_BYTEVECTOR_LENGTH (bv)) \
|
||
&& (ALIGNED_P (int_ptr, scm_t_ ## type)))) \
|
||
{ \
|
||
scm_t_ ## type x = *int_ptr; \
|
||
if (SCM_FIXABLE (x)) \
|
||
RETURN (SCM_I_MAKINUM (x)); \
|
||
else \
|
||
{ \
|
||
SYNC_REGISTER (); \
|
||
RETURN (scm_from_ ## type (x)); \
|
||
} \
|
||
} \
|
||
else \
|
||
{ \
|
||
SYNC_REGISTER (); \
|
||
RETURN (scm_bytevector_ ## stem ## _native_ref (bv, idx)); \
|
||
} \
|
||
}
|
||
|
||
#define BV_FLOAT_REF(stem, fn_stem, type, size) \
|
||
{ \
|
||
scm_t_inum i; \
|
||
const type *float_ptr; \
|
||
ARGS2 (bv, idx); \
|
||
\
|
||
VM_VALIDATE_BYTEVECTOR (bv, "bv-" #stem "-ref"); \
|
||
i = SCM_I_INUM (idx); \
|
||
float_ptr = (type *) (SCM_BYTEVECTOR_CONTENTS (bv) + i); \
|
||
\
|
||
SYNC_REGISTER (); \
|
||
if (SCM_LIKELY (SCM_I_INUMP (idx) \
|
||
&& (i >= 0) \
|
||
&& (i + size <= SCM_BYTEVECTOR_LENGTH (bv)) \
|
||
&& (ALIGNED_P (float_ptr, type)))) \
|
||
RETURN (scm_from_double (*float_ptr)); \
|
||
else \
|
||
RETURN (scm_bytevector_ ## fn_stem ## _native_ref (bv, idx)); \
|
||
}
|
||
|
||
VM_DEFINE_FUNCTION (182, bv_u8_ref, "bv-u8-ref", 2)
|
||
BV_FIXABLE_INT_REF (u8, u8, uint8, 1)
|
||
VM_DEFINE_FUNCTION (183, bv_s8_ref, "bv-s8-ref", 2)
|
||
BV_FIXABLE_INT_REF (s8, s8, int8, 1)
|
||
VM_DEFINE_FUNCTION (184, bv_u16_native_ref, "bv-u16-native-ref", 2)
|
||
BV_FIXABLE_INT_REF (u16, u16_native, uint16, 2)
|
||
VM_DEFINE_FUNCTION (185, bv_s16_native_ref, "bv-s16-native-ref", 2)
|
||
BV_FIXABLE_INT_REF (s16, s16_native, int16, 2)
|
||
VM_DEFINE_FUNCTION (186, bv_u32_native_ref, "bv-u32-native-ref", 2)
|
||
#if SIZEOF_VOID_P > 4
|
||
BV_FIXABLE_INT_REF (u32, u32_native, uint32, 4)
|
||
#else
|
||
BV_INT_REF (u32, uint32, 4)
|
||
#endif
|
||
VM_DEFINE_FUNCTION (187, bv_s32_native_ref, "bv-s32-native-ref", 2)
|
||
#if SIZEOF_VOID_P > 4
|
||
BV_FIXABLE_INT_REF (s32, s32_native, int32, 4)
|
||
#else
|
||
BV_INT_REF (s32, int32, 4)
|
||
#endif
|
||
VM_DEFINE_FUNCTION (188, bv_u64_native_ref, "bv-u64-native-ref", 2)
|
||
BV_INT_REF (u64, uint64, 8)
|
||
VM_DEFINE_FUNCTION (189, bv_s64_native_ref, "bv-s64-native-ref", 2)
|
||
BV_INT_REF (s64, int64, 8)
|
||
VM_DEFINE_FUNCTION (190, bv_f32_native_ref, "bv-f32-native-ref", 2)
|
||
BV_FLOAT_REF (f32, ieee_single, float, 4)
|
||
VM_DEFINE_FUNCTION (191, bv_f64_native_ref, "bv-f64-native-ref", 2)
|
||
BV_FLOAT_REF (f64, ieee_double, double, 8)
|
||
|
||
#undef BV_FIXABLE_INT_REF
|
||
#undef BV_INT_REF
|
||
#undef BV_FLOAT_REF
|
||
|
||
|
||
|
||
#define BV_SET_WITH_ENDIANNESS(stem, fn_stem) \
|
||
{ \
|
||
SCM endianness; \
|
||
POP (endianness); \
|
||
if (scm_is_eq (endianness, scm_i_native_endianness)) \
|
||
goto VM_LABEL (bv_##stem##_native_set); \
|
||
{ \
|
||
SCM bv, idx, val; POP3 (val, idx, bv); \
|
||
SYNC_REGISTER (); \
|
||
scm_bytevector_##fn_stem##_set_x (bv, idx, val, endianness); \
|
||
NEXT; \
|
||
} \
|
||
}
|
||
|
||
VM_DEFINE_INSTRUCTION (192, bv_u16_set, "bv-u16-set", 0, 4, 0)
|
||
BV_SET_WITH_ENDIANNESS (u16, u16)
|
||
VM_DEFINE_INSTRUCTION (193, bv_s16_set, "bv-s16-set", 0, 4, 0)
|
||
BV_SET_WITH_ENDIANNESS (s16, s16)
|
||
VM_DEFINE_INSTRUCTION (194, bv_u32_set, "bv-u32-set", 0, 4, 0)
|
||
BV_SET_WITH_ENDIANNESS (u32, u32)
|
||
VM_DEFINE_INSTRUCTION (195, bv_s32_set, "bv-s32-set", 0, 4, 0)
|
||
BV_SET_WITH_ENDIANNESS (s32, s32)
|
||
VM_DEFINE_INSTRUCTION (196, bv_u64_set, "bv-u64-set", 0, 4, 0)
|
||
BV_SET_WITH_ENDIANNESS (u64, u64)
|
||
VM_DEFINE_INSTRUCTION (197, bv_s64_set, "bv-s64-set", 0, 4, 0)
|
||
BV_SET_WITH_ENDIANNESS (s64, s64)
|
||
VM_DEFINE_INSTRUCTION (198, bv_f32_set, "bv-f32-set", 0, 4, 0)
|
||
BV_SET_WITH_ENDIANNESS (f32, ieee_single)
|
||
VM_DEFINE_INSTRUCTION (199, bv_f64_set, "bv-f64-set", 0, 4, 0)
|
||
BV_SET_WITH_ENDIANNESS (f64, ieee_double)
|
||
|
||
#undef BV_SET_WITH_ENDIANNESS
|
||
|
||
#define BV_FIXABLE_INT_SET(stem, fn_stem, type, min, max, size) \
|
||
{ \
|
||
scm_t_inum i, j = 0; \
|
||
SCM bv, idx, val; \
|
||
scm_t_ ## type *int_ptr; \
|
||
\
|
||
POP3 (val, idx, bv); \
|
||
VM_VALIDATE_BYTEVECTOR (bv, "bv-" #stem "-set"); \
|
||
i = SCM_I_INUM (idx); \
|
||
int_ptr = (scm_t_ ## type *) (SCM_BYTEVECTOR_CONTENTS (bv) + i); \
|
||
\
|
||
if (SCM_LIKELY (SCM_I_INUMP (idx) \
|
||
&& (i >= 0) \
|
||
&& (i + size <= SCM_BYTEVECTOR_LENGTH (bv)) \
|
||
&& (ALIGNED_P (int_ptr, scm_t_ ## type)) \
|
||
&& (SCM_I_INUMP (val)) \
|
||
&& ((j = SCM_I_INUM (val)) >= min) \
|
||
&& (j <= max))) \
|
||
*int_ptr = (scm_t_ ## type) j; \
|
||
else \
|
||
{ \
|
||
SYNC_REGISTER (); \
|
||
scm_bytevector_ ## fn_stem ## _set_x (bv, idx, val); \
|
||
} \
|
||
NEXT; \
|
||
}
|
||
|
||
#define BV_INT_SET(stem, type, size) \
|
||
{ \
|
||
scm_t_inum i = 0; \
|
||
SCM bv, idx, val; \
|
||
scm_t_ ## type *int_ptr; \
|
||
\
|
||
POP3 (val, idx, bv); \
|
||
VM_VALIDATE_BYTEVECTOR (bv, "bv-" #stem "-set"); \
|
||
i = SCM_I_INUM (idx); \
|
||
int_ptr = (scm_t_ ## type *) (SCM_BYTEVECTOR_CONTENTS (bv) + i); \
|
||
\
|
||
if (SCM_LIKELY (SCM_I_INUMP (idx) \
|
||
&& (i >= 0) \
|
||
&& (i + size <= SCM_BYTEVECTOR_LENGTH (bv)) \
|
||
&& (ALIGNED_P (int_ptr, scm_t_ ## type)))) \
|
||
*int_ptr = scm_to_ ## type (val); \
|
||
else \
|
||
{ \
|
||
SYNC_REGISTER (); \
|
||
scm_bytevector_ ## stem ## _native_set_x (bv, idx, val); \
|
||
} \
|
||
NEXT; \
|
||
}
|
||
|
||
#define BV_FLOAT_SET(stem, fn_stem, type, size) \
|
||
{ \
|
||
scm_t_inum i = 0; \
|
||
SCM bv, idx, val; \
|
||
type *float_ptr; \
|
||
\
|
||
POP3 (val, idx, bv); \
|
||
VM_VALIDATE_BYTEVECTOR (bv, "bv-" #stem "-set"); \
|
||
i = SCM_I_INUM (idx); \
|
||
float_ptr = (type *) (SCM_BYTEVECTOR_CONTENTS (bv) + i); \
|
||
\
|
||
if (SCM_LIKELY (SCM_I_INUMP (idx) \
|
||
&& (i >= 0) \
|
||
&& (i + size <= SCM_BYTEVECTOR_LENGTH (bv)) \
|
||
&& (ALIGNED_P (float_ptr, type)))) \
|
||
*float_ptr = scm_to_double (val); \
|
||
else \
|
||
{ \
|
||
SYNC_REGISTER (); \
|
||
scm_bytevector_ ## fn_stem ## _native_set_x (bv, idx, val); \
|
||
} \
|
||
NEXT; \
|
||
}
|
||
|
||
VM_DEFINE_INSTRUCTION (200, bv_u8_set, "bv-u8-set", 0, 3, 0)
|
||
BV_FIXABLE_INT_SET (u8, u8, uint8, 0, SCM_T_UINT8_MAX, 1)
|
||
VM_DEFINE_INSTRUCTION (201, bv_s8_set, "bv-s8-set", 0, 3, 0)
|
||
BV_FIXABLE_INT_SET (s8, s8, int8, SCM_T_INT8_MIN, SCM_T_INT8_MAX, 1)
|
||
VM_DEFINE_INSTRUCTION (202, bv_u16_native_set, "bv-u16-native-set", 0, 3, 0)
|
||
BV_FIXABLE_INT_SET (u16, u16_native, uint16, 0, SCM_T_UINT16_MAX, 2)
|
||
VM_DEFINE_INSTRUCTION (203, bv_s16_native_set, "bv-s16-native-set", 0, 3, 0)
|
||
BV_FIXABLE_INT_SET (s16, s16_native, int16, SCM_T_INT16_MIN, SCM_T_INT16_MAX, 2)
|
||
VM_DEFINE_INSTRUCTION (204, bv_u32_native_set, "bv-u32-native-set", 0, 3, 0)
|
||
#if SIZEOF_VOID_P > 4
|
||
BV_FIXABLE_INT_SET (u32, u32_native, uint32, 0, SCM_T_UINT32_MAX, 4)
|
||
#else
|
||
BV_INT_SET (u32, uint32, 4)
|
||
#endif
|
||
VM_DEFINE_INSTRUCTION (205, bv_s32_native_set, "bv-s32-native-set", 0, 3, 0)
|
||
#if SIZEOF_VOID_P > 4
|
||
BV_FIXABLE_INT_SET (s32, s32_native, int32, SCM_T_INT32_MIN, SCM_T_INT32_MAX, 4)
|
||
#else
|
||
BV_INT_SET (s32, int32, 4)
|
||
#endif
|
||
VM_DEFINE_INSTRUCTION (206, bv_u64_native_set, "bv-u64-native-set", 0, 3, 0)
|
||
BV_INT_SET (u64, uint64, 8)
|
||
VM_DEFINE_INSTRUCTION (207, bv_s64_native_set, "bv-s64-native-set", 0, 3, 0)
|
||
BV_INT_SET (s64, int64, 8)
|
||
VM_DEFINE_INSTRUCTION (208, bv_f32_native_set, "bv-f32-native-set", 0, 3, 0)
|
||
BV_FLOAT_SET (f32, ieee_single, float, 4)
|
||
VM_DEFINE_INSTRUCTION (209, bv_f64_native_set, "bv-f64-native-set", 0, 3, 0)
|
||
BV_FLOAT_SET (f64, ieee_double, double, 8)
|
||
|
||
#undef BV_FIXABLE_INT_SET
|
||
#undef BV_INT_SET
|
||
#undef BV_FLOAT_SET
|
||
|
||
/*
|
||
(defun renumber-ops ()
|
||
"start from top of buffer and renumber 'VM_DEFINE_FOO (\n' sequences"
|
||
(interactive "")
|
||
(save-excursion
|
||
(let ((counter 127)) (goto-char (point-min))
|
||
(while (re-search-forward "^VM_DEFINE_[^ ]+ (\\([^,]+\\)," (point-max) t)
|
||
(replace-match
|
||
(number-to-string (setq counter (1+ counter)))
|
||
t t nil 1)))))
|
||
*/
|
||
|
||
/*
|
||
Local Variables:
|
||
c-file-style: "gnu"
|
||
End:
|
||
*/
|